Congrats on the purchase. The design looks very nice. Would have consider it if we were still shopping for one but most likely it will have stretch our budget.
In any case, yes crime is a problem. My relatives all think i am crazy to have such plan, for that matter going to JB for shopping is also seen as a dangerous adventure. I think the security at ND looks good with single entry, high fence and CCTV, but outside of ND, there were some incident at the Giant area.
Obviously not as safe as Singapore and you will need to be extra careful. Do not leave anything in the car when you park, do not wear anything looking expensive, always be wary of your surrounding, ......... Well these were what I have been told and we try our best to practice it when we go over.